§ 1.988-6. Nonfunctional currency contingent payment debt instruments.

(i) Facts. On December 31, 2004, Z, a calendar year U.S. resident taxpayer whose functional currency is the U.S. dollar, purchases from a foreign corporation, at original issue, a zero-coupon debt instrument with a non-currency contingency for £1000. All payments of principal and interest with respect to the instrument are denominated in, or determined by reference to, a single nonfunctional currency (the British pound). The debt instrument would be subject to § 1.1275-4(b) if it were denominated in dollars. The debt instrument's comparable yield, determined in British pounds under paragraph (b)(2)(i) of this section and § 1.1275-4(b), is 10 percent, compounded annually, and the projected payment schedule, as constructed under the rules of § 1.1275-4(b), provides for a single payment of £1210 on December 31, 2006 (consisting of a noncontingent payment of £975 and a projected payment of £235). The debt instrument is a capital asset in the hands of Z. Z does not elect to use the spot-rate convention described in § 1.988-2(b)(2)(iii)(B). The payment actually made on December 31, 2006, is £1300. The relevant pound/dollar spot rates over the term of the instrument are as follows:

(ii) Treatment in 2005—(A) Determination of accrued interest. Under paragraph (b)(2)(i) of this section, and based on the comparable yield, Z accrues £100 of interest on the debt instrument for 2005 (issue price of £1000 × 10 percent). Under paragraph (b)(3)(i) of this section, Z translates the £100 at the average exchange rate for the accrual period ($1.05 × £100 = $105). Accordingly, Z has interest income in 2005 of $105.

(B) Adjusted issue price and basis. Under paragraphs (b)(2)(iii) and (iv) of this section, the adjusted issue price of the debt instrument determined in pounds and Z's adjusted basis in dollars in the debt instrument are increased by the interest accrued in 2005. Thus, on January 1, 2006, the adjusted issue price of the debt instrument is £1100. For purposes of determining Z's dollar basis in the debt instrument, the $1000 basis ($1.00 × £1000 original cost basis) is increased by the £100 of accrued interest, translated at the rate at which interest was accrued for 2005. See paragraph (b)(3)(iii) of this section. Accordingly, Z's adjusted basis in the debt instrument as of January 1, 2006, is $1105.

(iii) Treatment in 2006—(A) Determination of accrued interest. Under paragraph (b)(2)(i) of this section, and based on the comparable yield, Z accrues £110 of interest on the debt instrument for 2006 (adjusted issue price of £1100 × 10 percent). Under paragraph (b)(3)(i) of this section, Z translates the £110 at the average exchange rate for the accrual period ($1.15 × £110 = $126.50). Accordingly, Z has interest income in 2006 of $126.50.

(B) Effect of net positive adjustment. The payment actually made on December 31, 2006, is £1300, rather than the projected £1210. Under paragraph (b)(2)(ii) of this section, Z has a net positive adjustment of £90 on December 31, 2006, attributable to the difference between the amount of the actual payment and the amount of the projected payment. Under paragraph (b)(3)(ii)(A) of this section, the £90 net positive adjustment is treated as additional interest income and is translated into dollars at the spot rate on the last day of the year ($1.20 × £90 = $108). Accordingly, Z has a net positive adjustment of $108 resulting in a total interest inclusion for 2006 of $234.50 ($126.50 + $108 = $234.50).

(C) Adjusted issue price and basis. Based on the projected payment schedule, the adjusted issue price of the debt instrument immediately before the payment at maturity is £1210 (£1100 plus £110 of accrued interest for 2006). Z's adjusted basis in dollars, based only on the noncontingent payment and the projected amount of the contingent payment to be received, is $1231.50 ($1105 plus $126.50 of accrued interest for 2006).

(D) Amount realized. Even though Z receives £1300 at maturity, for purposes of determining the amount realized, Z is treated under paragraph (b)(2)(v) of this section as receiving the projected amount of the contingent payment on December 31, 2006. Therefore, Z is treated as receiving £1210 on December 31, 2006. Under paragraph (b)(3)(iv) of this section, Z translates its amount realized into dollars and computes its gain or loss on the instrument (other than foreign currency gain or loss) by breaking the amount realized into its component parts. Accordingly, £100 of the £1210 (representing the interest accrued in 2005) is translated at the rate at which it was accrued (£1 = $1.05), resulting in an amount realized of $105; £110 of the £1210 (representing the interest accrued in 2006) is translated into dollars at the rate at which it was accrued (£1 = $1.15), resulting in an amount realized of $126.50; and £1000 of the £1210 (representing a return of principal) is translated into dollars at the spot rate on the date the instrument was purchased (£1 = $1), resulting in an amount realized of $1000. Z's total amount realized is $1231.50, the same as its basis, and Z recognizes no gain or loss (before consideration of foreign currency gain or loss) on retirement of the instrument.

(E) Foreign currency gain or loss. Under paragraph (b)(5) of this section Z recognizes foreign currency gain under section 988 on the instrument with respect to the consideration actually received at maturity (except for the net positive adjustment), £1210. The amount of recognized foreign currency gain is determined based on the difference between the spot rate on the date the instrument matures and the rates at which the principal and interest were taken into account. With respect to the portion of the payment attributable to interest accrued in 2005, the foreign currency gain is $15 [£100 × ($1.20−$1.05)]. With respect to interest accrued in 2006, the foreign currency gain equals $5.50 [£110 × ($1.20−$1.15)]. With respect to principal, the foreign currency gain is $200 [£1000 × ($1.20−$1.00)]. Thus, Z recognizes a total foreign currency gain on December 31, 2006, of $220.50.

(F) Source. Z has interest income of $105 in 2005, interest income of $234.50 in 2006 (attributable to £110 of accrued interest and the £90 net positive adjustment), and a foreign currency gain of $220.50 in 2006. Under paragraph (b)(6) of this section and section 862(a)(1), the interest income is sourced by reference to the residence of the payor and is therefore from sources without the United States. Under paragraph (b)(6) of this section and § 1.988-4, Z's foreign currency gain of $220.50 is sourced by reference to Z's residence and is therefore from sources within the United States.

(i) Facts. Assume the same facts as in Example 1, except that Z receives £975 at maturity instead of £1300.

(ii) Treatment in 2005. The treatment of the debt instrument in 2005 is the same as in Example 1. Thus, Z has interest income in 2005 of $105. On January 1, 2006, the adjusted issue price of the debt instrument is £1100, and Z's adjusted basis in the instrument is $1105.

(iii) Treatment in 2006—(A) Determination of accrued interest. Under paragraph (b)(2)(i) of this section and based on the comparable yield, Z's accrued interest for 2006 is £110 (adjusted issue price of £1100 × 10 percent). Under paragraph (b)(3)(i) of this section, the £110 of accrued interest is translated at the average exchange rate for the accrual period ($1.15 × £110 = $126.50).

(B) Effect of net negative adjustment. The payment actually made on December 31, 2006, is £975, rather than the projected £1210. Under paragraph (b)(2)(ii) of this section, Z has a net negative adjustment of £235 on December 31, 2006, attributable to the difference between the amount of the actual payment and the amount of the projected payment. Z's accrued interest income of £110 in 2006 is reduced to zero by the net negative adjustment. Under paragraph (b)(3)(ii)(B)(1) of this section the net negative adjustment which reduces the current year's interest is not translated into functional currency. Under paragraph (b)(2)(ii) of this section, Z treats the remaining £125 net negative adjustment as an ordinary loss to the extent of the £100 previously accrued interest in 2005. This £100 ordinary loss is attributable to interest accrued but not paid in the preceding year. Therefore, under paragraph (b)(3)(ii)(B)(2) of this section, Z translates the loss into dollars at the average rate for such year (£1 = $1.05). Accordingly, Z has an ordinary loss of $105 in 2006. The remaining £25 of net negative adjustment is a negative adjustment carryforward under paragraph (b)(2)(ii) of this section.

(C) Adjusted issue price and basis. Based on the projected payment schedule, the adjusted issue price of the debt instrument immediately before the payment at maturity is £1210 (£1100 plus £110 of accrued interest for 2006). Z's adjusted basis in dollars, based only on the noncontingent payments and the projected amount of the contingent payments to be received, is $1231.50 ($1105 plus $126.50 of accrued interest for 2006).

(D) Amount realized. Even though Z receives £975 at maturity, for purposes of determining the amount realized, Z is treated under paragraph (b)(2)(v) of this section as receiving the projected amount of the contingent payment on December 31, 2006, reduced by the amount of Z's negative adjustment carryforward of £25. Therefore, Z is treated as receiving £1185 (£1210−£25) on December 31, 2006. Under paragraph (b)(3)(iv) of this section, Z translates its amount realized into dollars and computes its gain or loss on the instrument (other than foreign currency gain or loss) by breaking the amount realized into its component parts. Accordingly, £100 of the £1185 (representing the interest accrued in 2005) is translated at the rate at which it was accrued (£1 = $1.05), resulting in an amount realized of $105; £110 of the £1185 (representing the interest accrued in 2006) is translated into dollars at the rate at which it was accrued (£1 = $1.15), resulting in an amount realized of $126.50; and £975 of the £1185 (representing a return of principal) is translated into dollars at the spot rate on the date the instrument was purchased (£1 = $1), resulting in an amount realized of $975. Z's amount realized is $1206.50 ($105 + $126.50 + $975 = $1206.50), and Z recognizes a capital loss (before consideration of foreign currency gain or loss) of $25 on retirement of the instrument ($1206.50−$1231.50 = −$25).

(E) Foreign currency gain or loss. Z recognizes foreign currency gain with respect to the consideration actually received at maturity, £975. Under paragraph (b)(5)(ii) of this section, no foreign currency gain or loss is recognized with respect to unpaid accrued interest reduced to zero by the net negative adjustment resulting in 2006. In addition, no foreign currency gain or loss is recognized with respect to unpaid accrued interest from 2005, also reduced to zero by the ordinary loss. Accordingly, Z recognizes foreign currency gain with respect to principal only. Thus, Z recognizes a total foreign currency gain on December 31, 2006, of $195 [£975 × ($1.20−$1.00)].

(F) Source. In 2006, Z has an ordinary loss of $105, a capital loss of $25, and a foreign currency gain of $195. Under paragraph (b)(6) of this section and § 1.1275-4(b)(9)(iv), the $105 ordinary loss generally reduces Z's foreign source passive income under section 904(d) and the regulations thereunder. Under paragraph (b)(6) of this section and § 1.865-1(b)(2), the $25 capital loss is sourced by reference to how interest income on the instrument would have been sourced. Therefore, the $25 capital loss generally reduces Z's foreign source passive income under section 904(d) and the regulations thereunder. Under paragraph (b)(6) of this section and § 1.988-4, Z's foreign currency gain of $195 is sourced by reference to Z's residence and is therefore from sources within the United States.

(i) Facts. On December 31, 2004, Z, a calendar year U.S. resident taxpayer whose functional currency is the U.S. dollar, purchases from a foreign corporation, at original issue, a two-year debt instrument with a non-currency contingency for £1000. All payments of principal and interest with respect to the instrument are denominated in, or determined by reference to, a single nonfunctional currency (the British pound). The debt instrument would be subject to § 1.1275-4(b) if it were denominated in dollars. The debt instrument's comparable yield, determined in British pounds under §§ 1.988-2(b)(2) and 1.1275-4(b), is 10 percent, compounded semiannually. The debt instrument provides for semiannual interest payments of £30 payable each June 30, and December 31, and a contingent payment at maturity on December 31, 2006, which is projected to equal £1086.20 (consisting of a noncontingent payment of £980 and a projected payment of £106.20) in addition to the interest payable at maturity. The debt instrument is a capital asset in the hands of Z. Z does not elect to use the spot-rate convention described in § 1.988-2(b)(2)(iii)(B). The payment actually made on December 31, 2006, is £981.00. The relevant pound/dollar spot rates over the term of the instrument are as follows:

(ii) Treatment in 2005—(A) Determination of accrued interest. Under paragraph (b)(2)(i) of this section, and based on the comparable yield, Z accrues £50 of interest on the debt instrument for the January-June accrual period (issue price of £1000 × 10 percent/2). Under paragraph (b)(3)(i) of this section, Z translates the £50 at the average exchange rate for the accrual period ($1.10 × £50 = $55.00). Similarly, Z accrues £51 of interest in the July-December accrual period [(£1000 + £50−£30) × 10 percent/2], which is translated at the average exchange rate for the accrual period ($1.30 × £51 = $66.30). Accordingly, Z accrues $121.30 of interest income in 2005.

(B) Adjusted issue price and basis—(1) January-June accrual period. Under paragraphs (b)(2)(iii) and (iv) of this section, the adjusted issue price of the debt instrument determined in pounds and Z's adjusted basis in dollars in the debt instrument are increased by the interest accrued, and decreased by the interest payment made, in the January-June accrual period. Thus, on July 1, 2005, the adjusted issue price of the debt instrument is £1020 (£1000 + £50 − £30 = £1020). For purposes of determining Z's dollar basis in the debt instrument, the $1000 basis is increased by the £50 of accrued interest, translated, under paragraph (b)(3)(iii) of this section, at the rate at which interest was accrued for the January-June accrual period ($1.10 × £50 = $55). The resulting amount is reduced by the £30 payment of interest made during the accrual period, translated, under paragraph (b)(3)(iii) of this section and § 1.988-2(b)(7), at the rate applicable to accrued interest ($1.10 × £30 = $33). Accordingly, Z's adjusted basis as of July 1, 2005, is $1022 ($1000 + $55 − $33).

(2) July-December accrual period. Under paragraphs (b)(2)(iii) and (iv) of this section, the adjusted issue price of the debt instrument determined in pounds and Z's adjusted basis in dollars in the debt instrument are increased by the interest accrued, and decreased by the interest payment made, in the July-December accrual period. Thus, on January 1, 2006, the adjusted issue price of the instrument is £1041 (£1020 + £51 − £30 = £1041). For purposes of determining Z's dollar basis in the debt instrument, the $1022 basis is increased by the £51 of accrued interest, translated, under paragraph (b)(3)(iii) of this section, at the rate at which interest was accrued for the July-December accrual period ($1.30 × £51 = $66.30). The resulting amount is reduced by the £30 payment of interest made during the accrual period, translated, under paragraph (b)(3)(iii) of this section and § 1.988-2(b)(7), at the rate applicable to accrued interest ($1.30 × £30 = $39). Accordingly, Z's adjusted basis as of January 1, 2006, is $1049.30 ($1022 + $66.30 − $39).

(C) Foreign currency gain or loss. Z will recognize foreign currency gain on the receipt of each £30 payment of interest actually received during 2005. The amount of foreign currency gain in each case is determined, under paragraph (b)(5)(ii) of this section, by reference to the difference between the spot rate on the date the £30 payment was made and the average exchange rate for the accrual period during which the interest accrued. Accordingly, Z recognizes $3 of foreign currency gain on the January-June interest payment [£30 × ($1.20 − $1.10)], and $3 of foreign currency gain on the July-December interest payment [£30 × ($1.40 − $1.30)]. Z recognizes in 2005 a total of $6 of foreign currency gain.

(D) Source. Z has interest income of $121.30 and a foreign currency gain of $6. Under paragraph (b)(6) of this section and section 862(a)(1), the interest income is sourced by reference to the residence of the payor and is therefore from sources without the United States. Under paragraph (b)(6) of this section and § 1.988-4, Z's foreign currency gain of $6 is sourced by reference to Z's residence and is therefore from sources within the United States.

(iii) Treatment in 2006—(A) Determination of accrued interest. Under paragraph (b)(2)(i) of this section, and based on the comparable yield, Z's accrued interest for the January-June accrual period is £52.05 (adjusted issue price of £1041 × 10 percent/2). Under paragraph (b)(3)(i) of this section, Z translates the £52.05 at the average exchange rate for the accrual period ($1.50 × £52.05 = $78.08). Similarly, Z accrues £53.15 of interest in the July-December accrual period [(£1041 + £52.05−£30) × 10 percent/2], which is translated at the average exchange rate for the accrual period ($1.70 × £53.15 = $90.35). Accordingly, Z accrues £105.20, or $168.43, of interest income in 2006.

(B) Effect of net negative adjustment. The payment actually made on December 31, 2006, is £981.00, rather than the projected £1086.20. Under paragraph (b)(2)(ii)(B) of this section, Z has a net negative adjustment of £105.20 on December 31, 2006, attributable to the difference between the amount of the actual payment and the amount of the projected payment. Z's accrued interest income of £105.20 in 2006 is reduced to zero by the net negative adjustment. Elimination of the 2006 accrued interest fully utilizes the net negative adjustment.

(C) Adjusted issue price and basis—(1) January-June accrual period. Under paragraphs (b)(2)(iii) and (iv) of this section, the adjusted issue price of the debt instrument determined in pounds and Z's adjusted basis in dollars in the debt instrument are increased by the interest accrued, and decreased by the interest payment made, in the January-June accrual period. Thus, on July 1, 2006, the adjusted issue price of the debt instrument is £1063.05 (£1041 + £52.05 − £30 = £1063.05). For purposes of determining Z's dollar basis in the debt instrument, the $1049.30 adjusted basis is increased by the £52.05 of accrued interest, translated, under paragraph (b)(3)(iii) of this section, at the rate at which interest was accrued for the January-June accrual period ($1.50 × £52.05 = $78.08). The resulting amount is reduced by the £30 payment of interest made during the accrual period, translated, under paragraph (b)(3)(iii) of this section and § 1.988-2(b)(7), at the rate applicable to accrued interest ($1.50 × £30 = $45). Accordingly, Z's adjusted basis as of July 1, 2006, is $1082.38 ($1049.30 + $78.08 − $45).

(2) July-December accrual period. Under paragraphs (b)(2)(iii) and (iv) of this section, the adjusted issue price of the debt instrument determined in pounds and Z's adjusted basis in dollars in the debt instrument are increased by the interest accrued, and decreased by the interest payment made, in the July-December accrual period. Thus, immediately before maturity on December 31, 2006, the adjusted issue price of the instrument is £1086.20 (£1063.05 + £53.15 − £30 = £1086.20). For purposes of determining Z's dollar basis in the debt instrument, the $1082.38 adjusted basis is increased by the £53.15 of accrued interest, translated, under paragraph (b)(3)(iii) of this section, at the rate at which interest was accrued for the July-December accrual period ($1.70 × £53.15 = $90.36). The resulting amount is reduced by the £30 payment of interest made during the accrual period, translated, under paragraph (b)(3)(iii) of this section and § 1.988-2(b)(7), at the rate applicable to accrued interest ($1.70 × £30 = $51). Accordingly, Z's adjusted basis on December 31, 2006, immediately prior to maturity is $1121.74 ($1082.38 + $90.36 − $51).

(D) Amount realized. Even though Z receives £981.00 at maturity, for purposes of determining the amount realized, Z is treated under paragraph (b)(2)(v) of this section as receiving the projected amount of the contingent payment on December 31, 2006. Therefore, Z is treated as receiving £1086.20 on December 31, 2006. Under paragraph (b)(3)(iv) of this section, Z translates its amount realized into dollars and computes its gain or loss on the instrument (other than foreign currency gain or loss) by breaking the amount realized into its component parts. Accordingly, £20 of the £1086.20 (representing the interest accrued in the January-June 2005 accrual period, less £30 interest paid) is translated into dollars at the rate at which it was accrued (£1 = $1.10), resulting in an amount realized of $22; £21 of the £1086.20 (representing the interest accrued in the July-December 2005 accrual period, less £30 interest paid) is translated into dollars at the rate at which it was accrued (£1 = $1.30), resulting in an amount realized of $27.30; £22.05 of the £1086.20 (representing the interest accrued in the January-June 2006 accrual period, less £30 interest paid) is translated into dollars at the rate at which it was accrued (£1 = $1.50), resulting in an amount realized of $33.08; £23.15 of the £1086.20 (representing the interest accrued in the July 1-December 31, 2006 accrual period, less the £30 interest payment) is translated into dollars at the rate at which it was accrued (£1 = $1.70), resulting in an amount realized of $39.36; and £1000 (representing principal) is translated into dollars at the spot rate on the date the instrument was purchased (£1 = $1), resulting in an amount realized of $1000. Accordingly, Z's total amount realized is $1121.74 ($22 + $27.30 + $33.08 + $39.36 + $1000), the same as its basis, and Z recognizes no gain or loss (before consideration of foreign currency gain or loss) on retirement of the instrument.

(E) Foreign currency gain or loss. Z recognizes foreign currency gain with respect to each £30 payment actually received during 2006. These payments, however, are treated as payments of principal for this purpose because all 2006 accrued interest is reduced to zero by the net negative adjustment. See paragraph (b)(5)(iv)(A)(3) of this section. The amount of foreign currency gain in each case is determined, under paragraph (b)(5)(iii) of this section, by reference to the difference between the spot rate on the date the £30 payment is made and the spot rate on the date the debt instrument was issued. Accordingly, Z recognizes $18 of foreign currency gain on the January-June 2006 interest payment [£30 × ($1.60 − $1.00)], and $24 of foreign currency gain on the July-December 2006 interest payment [£30 × ($1.80 − $1.00)]. Z separately recognizes foreign currency gain with respect to the consideration actually received at maturity, £981.00. The amount of such gain is determined based on the difference between the spot rate on the date the instrument matures and the rates at which the principal and interest were taken into account. With respect to the portion of the payment attributable to interest accrued in January-June 2005 (other than the £30 payments), the foreign currency gain is $14 [£20 × ($1.80 − $1.10)]. With respect to the portion of the payment attributable to interest accrued in July-December 2005 (other than the £30 payments), the foreign currency gain is $10.50 [£21 × ($1.80 − $1.30)]. With respect to the portion of the payment attributable to interest accrued in 2006 (other than the £30 payments), no foreign currency gain or loss is recognized under paragraph (b)(5)(ii) of this section because such interest was reduced to zero by the net negative adjustment. With respect to the portion of the payment attributable to principal, the foreign currency gain is $752 [£940 × ($1.80 − $1.00)]. Thus, Z recognizes a foreign currency gain of $42 on receipt of the two £30 payments in 2006, and $776.50 ($14 + $10.50 + $752) on receipt of the payment at maturity, for a total 2006 foreign currency gain of $818.50.

(F) Source. Under paragraph (b)(6) of this section and § 1.988-4, Z's foreign currency gain of $818.50 is sourced by reference to Z's residence and is therefore from sources within the United States.

(i) Facts. On July 1, 2005, Z, a calendar year U.S. resident taxpayer whose functional currency is the U.S. dollar, purchases a debt instrument with a non-currency contingency for £1405. All payments of principal and interest with respect to the instrument are denominated in, or determined by reference to, a single nonfunctional currency (the British pound). The debt instrument would be subject to § 1.1275-4(b) if it were denominated in dollars. The debt instrument was originally issued by a foreign corporation on December 31, 2003, for an issue price of £1000, and matures on December 31, 2006. The debt instrument's comparable yield, determined in British pounds under §§ 1.988-2(b)(2) and 1.1275-4(b), is 10.25 percent, compounded semiannually, and the projected payment schedule for the debt instrument (determined as of the issue date under the rules of § 1.1275-4(b)) provides for a single payment at maturity of £1349.70 (consisting of a noncontingent payment of £1000 and a projected payment of £349.70). At the time of the purchase, the adjusted issue price of the debt instrument is £1161.76, assuming semiannual accrual periods ending on June 30 and December 31 of each year. The increase in the value of the debt instrument over its adjusted issue price is due to an increase in the expected amount of the contingent payment. The debt instrument is a capital asset in the hands of Z. Z does not elect to use the spot-rate convention described in § 1.988-2(b)(2)(iii)(B). The payment actually made on December 31, 2006, is £1400. The relevant pound/dollar spot rates over the term of the instrument are as follows:

(ii) Initial basis. Under paragraph (b)(7)(ii) of this section, Z's initial basis in the debt instrument is $1405, Z's purchase price of £1405, translated into functional currency at the spot rate on the date the debt instrument was purchased (£1 = $1).

(iii) Allocation of purchase price differential. Z purchased the debt instrument for £1405 when its adjusted issue price was £1161.76. Under paragraph (b)(7)(iii) of this section, Z allocates the £243.24 excess of purchase price over adjusted issue price to the contingent payment at maturity. This allocation is reasonable because the excess is due to an increase in the expected amount of the contingent payment and not, for example, to a decrease in prevailing interest rates.

(iv) Treatment in 2005—(A) Determination of accrued interest. Under paragraph (b)(2)(i) of this section, and based on the comparable yield, Z accrues £59.54 of interest on the debt instrument for the July-December 2005 accrual period (issue price of £1161.76 × 10.25 percent/2). Under paragraph (b)(3)(i) of this section, Z translates the £59.54 of interest at the average exchange rate for the accrual period ($1.50 × £59.54 = $89.31). Accordingly, Z has interest income in 2005 of $89.31.

(B) Adjusted issue price and basis. Under paragraphs (b)(2)(iii) and (iv) of this section, the adjusted issue price of the debt instrument determined in pounds and Z's adjusted basis in dollars in the debt instrument are increased by the interest accrued in July-December 2005. Thus, on January 1, 2006, the adjusted issue price of the debt instrument is £1221.30 (£1161.76 + £59.54). For purposes of determining Z's dollar basis in the debt instrument on January 1, 2006, the $1405 basis is increased by the £59.54 of accrued interest, translated at the rate at which interest was accrued for the July-December 2005 accrual period. Paragraph (b)(3)(iii) of this section. Accordingly, Z's adjusted basis in the instrument, as of January 1, 2006, is $1494.31 [$1405 + (£59.54 × $1.50)].

(v) Treatment in 2006—(A) Determination of accrued interest. Under paragraph (b)(2)(i) of this section, and based on the comparable yield, Z accrues £62.59 of interest on the debt instrument for the January-June 2006 accrual period (issue price of £1221.30 × 10.25 percent/2). Under paragraph (b)(3)(i) of this section, Z translates the £62.59 of accrued interest at the average exchange rate for the accrual period ($1.50 × £62.59 = $93.89). Similarly, Z accrues £65.80 of interest in the July-December 2006 accrual period [(£1221.30 + £62.59) × 10.25 percent/2], which is translated at the average exchange rate for the accrual period ($1.50 × £65.80 = $98.70). Accordingly, Z accrues £128.39, or $192.59, of interest income in 2006.

(B) Effect of positive and negative adjustments—(1) Offset of positive adjustment. The payment actually made on December 31, 2006, is £1400, rather than the projected £1349.70. Under paragraph (b)(2)(ii) of this section, Z has a positive adjustment of £50.30 on December 31, 2006, attributable to the difference between the amount of the actual payment and the amount of the projected payment. Under paragraph (b)(7)(iii) of this section, however, Z also has a negative adjustment of £243.24, attributable to the excess of Z's purchase price for the debt instrument over its adjusted issue price. Accordingly, Z will have a net negative adjustment of £192.94 (£50.30−£243.24 = £192.94) for 2006.

(2) Offset of accrued interest. Z's accrued interest income of £128.39 in 2006 is reduced to zero by the net negative adjustment. The net negative adjustment which reduces the current year's interest is not translated into functional currency. Under paragraph (b)(2)(ii) of this section, Z treats the remaining £64.55 net negative adjustment as an ordinary loss to the extent of the £59.54 previously accrued interest in 2005. This £59.54 ordinary loss is attributable to interest accrued but not paid in the preceding year. Therefore, under paragraph (b)(3)(ii)(B)(2) of this section, Z translates the loss into dollars at the average rate for such year (£1 = $1.50). Accordingly, Z has an ordinary loss of $89.31 in 2006. The remaining £5.01 of net negative adjustment is a negative adjustment carryforward under paragraph (b)(2)(ii) of this section.

(C) Adjusted issue price and basis—(1) January-June accrual period. Under paragraph (b)(2)(iii) of this section, the adjusted issue price of the debt instrument on July 1, 2006, is £1283.89 (£1221.30 + £62.59 = £1283.89). Under paragraphs (b)(2)(iv) and (b)(3)(iii) of this section, Z's adjusted basis as of July 1, 2006, is $1588.20 ($1494.31 + $93.89).

(2) July-December accrual period. Based on the projected payment schedule, the adjusted issue price of the debt instrument immediately before the payment at maturity is £1349.70 (£1283.89 + £65.80 accrued interest for July-December). Z's adjusted basis in dollars, based only on the noncontingent payments and the projected amount of the contingent payments to be received, is $1686.90 ($1588.20 plus $98.70 of accrued interest for July-December).

(3) Adjustment to basis upon contingent payment. Under paragraph (b)(7)(iii) of this section, Z's adjusted basis in the debt instrument is reduced at maturity by £243.24, the excess of Z's purchase price for the debt instrument over its adjusted issue price. For this purpose, the adjustment is translated into functional currency at the spot rate on the date the instrument was acquired (£1 = $1). Accordingly, Z's adjusted basis in the debt instrument at maturity is $1443.66 ($1686.90−$243.24).

(D) Amount realized. Even though Z receives £1400 at maturity, for purposes of determining the amount realized, Z is treated under paragraph (b)(2)(v) of this section as receiving the projected amount of the contingent payment on December 31, 2006, reduced by the amount of Z's negative adjustment carryforward of £5.01. Therefore, Z is treated as receiving £1344.69 (£1349.70−£5.01) on December 31, 2006. Under paragraph (b)(3)(iv) of this section, Z translates its amount realized into dollars and computes its gain or loss on the instrument (other than foreign currency gain or loss) by breaking the amount realized into its component parts. Accordingly, £59.54 of the £1344.69 (representing the interest accrued in 2005) is translated at the rate at which it was accrued (£1 = $1.50), resulting in an amount realized of $89.31; £62.59 of the £1344.69 (representing the interest accrued in January-June 2006) is translated into dollars at the rate at which it was accrued (£1 = $1.50), resulting in an amount realized of $93.89; £65.80 of the £1344.69 (representing the interest accrued in July-December 2006) is translated into dollars at the rate at which it was accrued (£1 = $1.50), resulting in an amount realized of $98.70; and £1156.76 of the £1344.69 (representing a return of principal) is translated into dollars at the spot rate on the date the instrument was purchased (£1 = $1), resulting in an amount realized of $1156.76. Z's amount realized is $1438.66 ($89.31 + $93.89 + $98.70 + $1156.76), and Z recognizes a capital loss (before consideration of foreign currency gain or loss) of $5 on retirement of the instrument ($1438.66 − $1443.66 = −$5).

(E) Foreign currency gain or loss. Z recognizes foreign currency gain under section 988 on the instrument with respect to the entire consideration actually received at maturity, £1400. While foreign currency gain or loss ordinarily would not have arisen with respect to £50.30 of the £1400, which was initially treated as a positive adjustment in 2006, the larger negative adjustment in 2006 reduced this positive adjustment to zero. Accordingly, foreign currency gain or loss is recognized with respect to the entire £1400. Under paragraph (b)(5)(ii) of this section, however, no foreign currency gain or loss is recognized with respect to unpaid accrued interest reduced to zero by the net negative adjustment resulting in 2006, and no foreign currency gain or loss is recognized with respect to unpaid accrued interest from 2005, also reduced to zero by the ordinary loss. Therefore, the entire £1400 is treated as a return of principal for the purpose of determining foreign currency gain or loss, and Z recognizes a total foreign currency gain on December 31, 2001, of $1400 [£1400 × ($2.00−$1.00)].

(F) Source. Z has an ordinary loss of $89.31, a capital loss of $5, and a foreign currency gain of $1400. Under paragraph (b)(6) of this section and § 1.1275-4(b)(9)(iv), the $89.31 ordinary loss generally reduces Z's foreign source passive income under section 904(d) and the regulations thereunder. Under paragraph (b)(6) of this section and § 1.865-1(b)(2), the $5 capital loss is sourced by reference to how interest income on the instrument would have been sourced. Therefore, the $5 capital loss generally reduces Z's foreign source passive income under section 904(d) and the regulations thereunder. Under paragraph (b)(6) of this section and § 1.988-4, Z's foreign currency gain of $1400 is sourced by reference to Z's residence and is therefore from sources within the United States.

(i) Facts. On December 31, 2003, Z, a calendar year U.S. resident taxpayer whose functional currency is the U.S. dollar, purchases at original issue a debt instrument with non-currency contingencies for £1000. All payments of principal and interest with respect to the instrument are denominated in, or determined by reference to, a single nonfunctional currency (the British pound). The debt instrument would be subject to § 1.1275-4(b) if it were denominated in dollars. The debt instrument's comparable yield, determined in British poundsunder §§ 1.988-2(b)(2) and 1.1275-4(b), is 10 percent, compounded annually, and the projected payment schedule for the debt instrument provides for payments of £310 on December 31, 2005 (consisting of a noncontingent payment of £50 and a projected amount of £260) and £990 on December 31, 2006 (consisting of a noncontingent payment of £940 and a projected amount of £50). The debt instrument is a capital asset in the hands of Z. Z does not elect to use the spot-rate convention described in § 1.988-2(b)(2)(iii)(B). The payment actually made on December 31, 2005, is £50. On December 30, 2006, Z sells the debt instrument for £940. The relevant pound/dollar spot rates over the term of the instrument are as follows:

(ii) Treatment in 2004—(A) Determination of accrued interest. Under paragraph (b)(2)(i) of this section, and based on the comparable yield, Z accrues £100 of interest on the debt instrument for 2004 (issue price of £1000 × 10 percent). Under paragraph (b)(3)(i) of this section, Z translates the £100 at the average exchange rate for the accrual period ($2.00 × £100 = $200). Accordingly, Z has interest income in 2004 of $200.

(B) Adjusted issue price and basis. Under paragraphs (b)(2)(iii) and (iv) of this section, the adjusted issue price of the debt instrument determined in pounds and Z's adjusted basis in dollars in the debt instrument are increased by the interest accrued in 2004. Thus, on January 1, 2005, the adjusted issue price of the debt instrument is £1100. For purposes of determining Z's dollar basis in the debt instrument, the $1000 basis ($1.00 × £1000 original cost basis) is increased by the £100 of accrued interest, translated at the rate at which interest was accrued for 2004. See paragraph (b)(3)(iii) of this section. Accordingly, Z's adjusted basis in the debt instrument as of January 1, 2005, is $1200 ($1000 + $200).

(iii) Treatment in 2005—(A) Determination of accrued interest. Under paragraph (b)(2)(i) of this section, and based on the comparable yield, Z's accrued interest for 2005 is £110 (adjusted issue price of £1100 × 10 percent). Under paragraph (b)(3)(i) of this section, the £110 of accrued interest is translated at the average exchange rate for the accrual period ($2.00 × £110 = $220).

(B) Effect of net negative adjustment. The payment actually made on December 31, 2005, is £50, rather than the projected £310. Under paragraph (b)(2)(ii) of this section, Z has a net negative adjustment of £260 on December 31, 2005, attributable to the difference between the amount of the actual payment and the amount of the projected payment. Z's accrued interest income of £110 in 2005 is reduced to zero by the net negative adjustment. Under paragraph (b)(3)(ii)(B)(1) of this section, the net negative adjustment which reduces the current year's interest is not translated into functional currency. Under paragraph (b)(2)(ii) of this section, Z treats the remaining £150 net negative adjustment as an ordinary loss to the extent of the £100 previously accrued interest in 2004. This £100 ordinary loss is attributable to interest accrued but not paid in the preceding year. Therefore, under paragraph (b)(3)(ii)(B)(2) of this section, Z translates the loss into dollars at the average rate for such year (£1 = $2.00). Accordingly, Z has an ordinary loss of $200 in 2005. The remaining £50 of net negative adjustment is a negative adjustment carryforward under paragraph (b)(2)(ii) of this section.

(C) Adjusted issue price and basis. Based on the projected payment schedule, the adjusted issue price of the debt instrument on January 1, 2006 is £900, i.e., the adjusted issue price of the debt instrument on January 1, 2005 (£1100), increased by the interest accrued in 2005 (£110), and decreased by the projected amount of the December 31, 2005, payment (£310). See paragraph (b)(2)(iii) of this section. Z's adjusted basis on January 1, 2006 is Z's adjusted basis on January 1, 2005 ($1200), increased by the functional currency amount of interest accrued in 2005 ($220), and decreased by the amount of the payments made in 2005, based solely on the projected payment schedule, (£310). The amount of the projected payment is first attributable to the interest accrued in 2005 (£110), and then to the interest accrued in 2004 (£100), and the remaining amount to principal (£100). The interest component of the projected payment is translated into functional currency at the rates at which it was accrued, and the principal component of the projected payment is translated into functional currency at the spot rate on the date the instrument was issued. See paragraph (b)(3)(iii) of this section. Accordingly, Z's adjusted basis in the debt instrument, following the increase of adjusted basis for interest accrued in 2005 ($1200 + $220 = $1420), is decreased by $520 ($220 + $200 + $100 = $520). Z's adjusted basis on January 1, 2006 is therefore, $900.

(D) Foreign currency gain or loss. Z will recognize foreign currency gain on the receipt of the £50 payment actually received on December 31, 2005. Based on paragraph (b)(5)(iv) of this section, the £50 payment is attributable to principal since the accrued unpaid interest was completely eliminated by the net negative adjustment. The amount of foreign currency gain is determined, under paragraph (b)(5)(iii) of this section, by reference to the difference between the spot rate on the date the £50 payment was made and the spot rate on the date the debt instrument was issued. Accordingly, Z recognizes $50 of foreign currency gain on the £50 payment. [($2.00—$1.00) × £50 = $50]. Under paragraph (b)(6) of this section and § 1.988-4, Z's foreign currency gain of $50 is sourced by reference to Z's residence and is therefore from sources within the United States.

(iv) Treatment in 2006—(A) Determination of accrued interest. Under paragraph (b)(2)(i) of this section, and based on the comparable yield, Z accrues £90 of interest on the debt instrument for 2006 (adjusted issue price of £900 × 10 percent). Under paragraph (b)(3)(i) of this section, Z translates the £90 at the average exchange rate for the accrual period ($2.00 × £90 = $180). Accordingly, prior to taking into account the 2005 negative adjustment carryforward, Z has interest income in 2006 of $180.

(B) Effect of net negative adjustment. The £50 negative adjustment carryforward from 2005 is a negative adjustment for 2006. Since there are no other positive or negative adjustments, there is a £50 negative adjustment in 2006 which reduces Z's accrued interest income by £50. Accordingly, after giving effect to the £50 negative adjustment carryforward, Z will accrue $80 of interest income. [(£90−£50) × $2.00 = $80]

(C) Adjusted issue price. Under paragraph (b)(2)(iii) of this section, the adjusted issue price of the debt instrument determined in pounds is increased by the interest accrued in 2006 (prior to taking into account the negative adjustment carryforward). Thus, on December 30, 2006, the adjusted issue price of the debt instrument is £990.

(D) Adjusted basis. For purposes of determining Z's dollar basis in the debt instrument, Z's $900 adjusted basis on January 1, 2006, is increased by the accrued interest, translated at the rate at which interest was accrued for 2006. See paragraph (b)(3)(iii)(A) of this section. Note, however, that under paragraph (b)(3)(iii)(B) of this section the amount of accrued interest which is reduced as a result of the negative adjustment carryforward, i.e., £50, is treated for purposes of this section as principal, and is translated at the spot rate on the date the instrument was issued, i.e., £1.00 = $1.00. Accordingly, Z's adjusted basis in the debt instrument as of December 30, 2006, is $1030 ($900 + $50 + $80).

(E) Amount realized. Z's amount realized in denomination currency is £940, i.e., the amount of pounds Z received on the sale of the debt instrument. Under paragraph (b)(3)(iv)(B)(1) of this section, Z's amount realized is first translated by reference to the principal component of basis (including the amount which is treated as principal under paragraph (b)(3)(iii)(B) of this section) and then the remaining amount realized, if any, is translated by reference to the accrued unpaid interest component of adjusted basis. Thus, £900 of Z's amount realized is translated by reference to the principal component of adjusted basis. The remaining £40 of Z's amount realized is treated as principal under paragraph (b)(3)(iii)(B) of this section, and is also translated by reference to the principal component of adjusted basis. Accordingly, Z's amount realized in functional currency is $940. (No part of Z's amount realized is attributable to the interest accrued on the debt instrument.) Z realizes a loss of $90 on the sale of the debt instrument ($1030 basis−$940 amount realized). Under paragraph (b)(4) of this section and § 1.1275-4(b)(8), $80 of the loss is characterized as ordinary loss, and the remaining $10 of loss is characterized as capital loss. Under §§ 1.988-6(b)(6) and 1.1275-4(b)(9)(iv) the $80 ordinary loss is treated as a deduction that is definitely related to the interest income accrued on the debt instrument. Similarly, under §§ 1.988-6(b)(6) and 1.865-1(b)(2) the $10 capital loss is also allocated to the interest income from the debt instrument.

(F) Foreign currency gain or loss. Z recognizes foreign currency gain with respect to the £940 he received on the sale of the debt instrument. Under paragraph (b)(5)(iv) of this section, the £940 Z received is attributable to principal (and the amount which is treated as principal under paragraph (b)(3)(iii)(B) of this section). Thus, Z recognizes foreign currency gain on December 31, 2006, of $940. [($2.00−$1.00) × £940]. Under paragraph (b)(6) of this section and § 1.988-4, Z's foreign currency gain of $940 is sourced by reference to Z's residence and is therefore from sources within the United States.